TC Electronic DB6, Manual

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Loudness Wizard
44 DB6 Single / Multi / AES – Firmware version 1.30
Loudness Wizard
An introduction to the
Loudness Wizard
The Loudness Wizard signal processing algo-
rithm is the “heart and soul” of DB6. It includes
features from other well-known TC algorithms
(UpCon, DownMix and On-line Delay) – so if you
are familiar with these algorithms, you can build
upon your know-how when using Loudness Wiz-
ard.
Each signal processing card in a DB6 unit has
two Engines capable of running the Loudness
Wizard algorithm; meaning one signal process-
ing card can process two audio streams inde-
pendently.
Loudness Wizard may be used in the following
configurations:
– Stereo in/out
– 5.1 in/out
– Stereo in/5.1 out
–
5.1 in/stereo out.
The eight audio channels available over SDI can
be dealt with in a variety of ways. For instance,
you could generate a constant 5.1 output for
HDTV and a constant Stereo output for Mobile
TV – regardless if the input is 5.1 or stereo.
An introduction to the Loudness
Wizard’s UpCon module
The DB6 Loudness Wizard’s UpCon module is
an automatic, real-time 5.1 up-conversion au-
dio processor. The UpCon module continuously
monitors the format of the incoming audio – and
if the signal falls back from true 5.1 to stereo, it
seamlessly crossfades into a convincing 5.1 sur-
round up-conversion, without adding any inter-
ruptions or artifacts. Detection does not require
metadata or GPIs to function correctly, and the
processing delay is only 0.8 ms (less than 1/40th
frame). Therefore, no extra delays are required to
maintain A/V sync.
Use the UpCon module in Transmission or Ingest
to ensure the availability of an uninterrupted 5.1
signal, or to extend the production capabilities of
an audio studio from stereo to 5.1.
Loudness Wizard – Main page
Loudness Wizard – Main page
! If you have recently upgraded your DB6 from
an earlier software version, please note that
the Loudness Wizard main page has been re-
structured for version 1.25. Be sure to read the
information pertaining to new and redesigned
features as seen in this screen shot.
Input section
Input Select parameter
Use the Input Select parameter to select how
input signals should be selected for signal pro-
cessing (i.e., format conversion and loudness
processing).
Main Only setting
When 5.1 and Stereo signals are fed to the same
physical inputs (i.e. In 1-6), set the Input Select
parameter to Main Only. UpCon is automatically
enabled when the input format is stereo.
Main 5.1 Priority setting
When 5.1 and Stereo signals are fed to different
physical inputs (i.e. In 1-6 vs. 7-8) and the 5.1
input should have priority, set the Input Select
parameter to Main 5.1 Priority setting. UpCon is
automatically enabled when the input format is
stereo.
If both inputs are active, priority is given to the
5.1 input.
Aux Priority setting
When 5.1 and Stereo signals are fed to different
physical inputs (i.e. In 1-6 vs. 7-8) and the ste-
reo (Aux) input should have priority, set the Input
Select parameter to Aux Priority setting. UpCon
is automatically enabled when the input format
is stereo.